#include "TcpServer.hpp"
#include <memory>
#include <iostream>

using namespace std;

extern Log lg;

void Usage(std::string proc)
{
    std::cout << "\n\rUsage: " << proc << " serverip serverport\n" << std::endl;
}

// ./tcpclient serverip serverport
int main(int argc, char *argv[])
{
    if(argc != 3)
    {
        Usage(argv[0]);
        exit(0);
    }
    std::string serverip = argv[1];
    uint16_t serverport = std::stoi(argv[2]);

    struct sockaddr_in server;
    memset(&server, 0, sizeof(server));
    server.sin_family = AF_INET;
    server.sin_port = htons(serverport);
    // inet_pton 中 p -> process, n -> net 意为将本地的东西转换为网络的东西
    inet_pton(AF_INET, serverip.c_str(), &(server.sin_addr));

    
    while (true)
    {
        // 尝试进行5次重连
        int cnt = 5;
        int isreconnect = false;
        int sockfd = 0;
        do
        {
            sockfd = socket(AF_INET, SOCK_STREAM, 0);
            if(sockfd < 0)
            {
                cout << "socker error" << endl;
                return 1;
            }   

            //tcp客户端要不要bind?——要的，那要不要显示的bind?——不需要，系统使用随机端口进行bind
            //客户端发起connect的时候,进行自动随机bind

            int n = connect(sockfd, (struct sockaddr*)&server, sizeof(server));
            if(n < 0)
            {
                isreconnect = true;
                cnt--;
                std::cerr << "connect error, reconnecting... times: " << 5 - cnt << std::endl;
                sleep(1);
            }
            else
            {
                break;
            }
        } while (cnt && isreconnect);

        if (cnt == 0)
        {
            cout << "user offline..." << endl;
            break;
        }

        std::string message;
        std::cout << "Please Enter: ";
        std::getline(std::cin, message);

        int n = write(sockfd, message.c_str(), message.size());
        if (n < 0)
        {
            cout << "write error" << endl;
            continue;
        }

        char inbuffer[4096];
        n = read(sockfd, inbuffer, sizeof(inbuffer));
        if(n > 0)
        {
            inbuffer[n] = 0;
            std::cout << inbuffer << std::endl;
        }

        close(sockfd);
    }
    return 0;
}